Need help, Bondtech with Duet 3 mini 5

davidewen

I have a Bondtech DDX v3 and a Mini 5+.

I'm not able to get my extrusion settings correct.

Initially configured via RRF tool.
Microstepping = x16(on)
Steps per mm = 436.54
Max speed change = 2
Max speed mm/s = 20
Acceleration mm/s = 250
Motor Current = 800mA

config.g
NOTE: the extra info is test parameters

; Drives
M569 P0.0 S0 ; physical drive 0.0 goes backwards
M569 P0.1 S1 ; physical drive 0.1 goes forwards
M569 P0.2 S0 ; physical drive 0.2 goes backwards
M569 P0.3 S1 ; physical drive 0.3 goes forwards
M584 X0.0 Y0.1 Z0.2 E0.3 ; set drive mapping
M350 E256 I0 ; configure microstepping without interpolation
M350 X16 Y16 Z16 I1 ; configure microstepping with interpolation
;M92 X80.00 Y80.00 Z400.00 E420.00 ; set steps per mm
;M566 X900.00 Y900.00 Z60.00 E120.00 ; set maximum instantaneous speed changes (mm/min)
;M203 X6000.00 Y6000.00 Z180.00 E1200.00 ; set maximum speeds (mm/min)
;M201 X500.00 Y500.00 Z20.00 E250.00 ; set accelerations (mm/s^2)
;M906 X800 Y800 Z800 E800 I30 ; set motor currents (mA) and motor idle factor in per cent

M92 X80.00 Y80.00 Z400.00 E436.54 ; set steps per mm

;M92 X53.33 Y53.33 Z2560.00 E48.5 ; set steps per mm
M566 X900.00 Y900.00 Z60.00 E120.00 ; set maximum instantaneous speed changes (mm/min)
M203 X18000.00 Y18000.00 Z300.00 E12000.00 ; set maximum speeds (mm/min)
M201 X500.00 Y500.00 Z10.00 E100.00 ; set accelerations (mm/s^2)
M906 X800 Y800 Z800 E720 I30 ; set motor currents (mA) and motor idle factor in per cent

M84 S30 ; Set idle timeout

Th0mpy

@davidewen What kind of issue are you having?

davidewen

@th0mpy
Great question. I guess I only partially explained it.

Extrusion lengths are not correct when using the web interface.
When I have 100mm extrusion length selected, I only get about 10mm of extrusion.

Phaedrux

@davidewen said in Need help, Bondtech with Duet 3 mini 5:

M350 E256 I0 ; configure microstepping without interpolation

Just use x16 microstepping with interpolation enabled. Set your steps per mm to suit. Then try calibrating the extruder again.

davidewen

@phaedrux
Thanks.
I've adjusted the interpolation.
Is there a guide showing how to calibrate the extruder?

Phaedrux

https://duet3d.dozuki.com/Guide/Ender+3+Pro+and+Duet+Maestro+Guide+Part+4:+Calibration/40#s165

davidewen

@phaedrux
Thanks.
That did the trick.